Cut-off.



H. F. STORER 6: W. W. JAMIESON, JR.

GUT-OFF. APPLICATION EILED JULY 6, 19 11.

T3 10 WITNESSES 1 1 INVENTOR 16 Ham j Ffihwex' 1 17 WUbum\I J.Qii.rr\'\e acn'u a: (I I lnqr Attorney JR., OF CENTRAL CITY,

KENTUCKY.

CUT-OFF.

To all whom it may concern:

Be it known that we, HARRY F. S'ronnn and WILBURN W. J AMIESON, J r.,citizens of the United States, residing at Central City, in the countyof Muhlenberg and State of Kentucky, have invented certain new anduseful Improvements in Cut-Offs, of which the following is aspecification, reference being had therein to the accompanying drawing.

This invention relates to automatic cut offs for use in connection withgas or other pipes wherein there is a constant fluid pressure.

The principal object of the invention is to provide means whereby thepressure when used in connection with a gas pipe, is automatically cutoff when the stop is accidentally opened by persons who are careless orunfamiliar with the action of the gas et.

Another object of the invention is to provide a cut ofi of aconstruction wherein the outer parts may be separated and the cut ofireadily cleaned.

The invention also comprises a device that can be easily and cheaplymanufacltured.

The above mentioned objects are attained by the provision of a cylindercontaining a longitudinally extending inlet and outlet opening, atransverse opening connecting said inlet and outlet openings and a ballwhich automatically closes the outlet opening when the pressure isreduced and which is manually operated when it is desired to open saidoutlet opening.

In carrying out the objects of the invention generally stated above, itwill be understood, of course, that the essential features thereof aresusceptible to changes in details and structural arrangements, onepreferred and practical embodiment of the invention being shown in theaccompanying drawings, wherein:v

Figure 1 is a vertical longitudinal sectional view constructed inaccordance with this invention. Fig. 2 is a transverse sectional viewtaken on the line 22 in Fig. 1. Fig. 3 is a sectional view taken on theline 3 3 in Fig. 1.

Referring to the accompanying drawings by numerals it will be seen thatthe invention comprises a cylindrical body 1 externally threaded at itsends 2 and 3 for engagement with a gas pipe. The body 1 is provided ad-Specification of Letters Patent.

Application filed July 6, 1911.

Patented J an. 2, 1912. Serial No. 637,211.

jacent its periphery with a longitudinally extending inlet opening 4which terminates in said body and is provided adjacent its inner endwith a reduced portion 5 which forms a valve seat 6 extending inwardlyfrom the ends 3. Parallel with the inlet 4 is an out-let opening 7, saidinlet and outlet openings having their inner ends in overlappingrelation. Intermediate the ends of the inlet opening 4 and contiguous tothe inner end of the outlet openings 7 is a transverse opening 8 whichextends entirely through the body 1. Where the transverse opening 8merges into the outlet opening 7 there is provided an annular flange 9which is adapted to act as a seat for the ball 10 when the out OH isclosed. The bottom of the inlet 4 is inclined downwardly from the valveseat 6 in order that the ball 10 will readily fall upon the seat 9 whenthe pressure is reduced.

The transverse opening 8 is threaded adjacent the inlet opening 4 and isadapted to receive a cap 11 which is provided with an externallythreaded portion 12 for engagement with the threads of the opening 8.The cap 11 is provided for the purpose of facilitating the cleaning ofthe body 1 and it will be obvious that access may be had to thetransverse opening by the removal of this cap. The opposite end of thetransverse opening 8 is also threaded and is adapted to receive abushing 13 which is externally threaded at one end thereof. Extendinglongitudinally through said bushing is an opening 14 which is enlargedat its outer end to receive a packing 15 which is held in place by theexternally threaded cap 16, said cap engaging the internal threads ofthe enlarged portion of the opening 14. A rod 17 extends through the cap16, packing 15, and opening 14 and is provided on its outer end with anenlarged head 18 and on its inner end with a head 19. Coiled about therod 17 between the cap 16 and enlarged head 18 is a spring 20 whichnormally retains the rod in the position shown in the drawings.

At the inner end of the inlet opening 4 there is provided a relief valve21 which is threaded into the body 1. Said valve is provided with alongitudinally extending opening 22 and a transverse opening 23.Slidable longitudinally within the valve 21 is a valve stem 24 which isprovided at its outer end with a head 25. The stem 24 passes through thelongitudinal opening 22 and is provided on its inner end with a valve 26which is threaded on said stem and held in position by the nut 27, saidvalve being adapted to normally close the opening 22.

Mounted in the inlet opening 4 adjacent the transverse opening 8 is aring 28 provided with a transverse opening 29 which permits a passage ofgas or other fluid to said opening 8. This ring also prevents the ball10 from getting into the outer end of the valve opening.

It will be seen from the foregoing description that when desired toallow a fluid to pass through the outlet opening 7 the ball 10 may beraised from its seat 9 by pushing inwardly upon the enlarged head 18 ofthe rod 17. This will cause the head 19 to engage the ball and force thesame into alinement with the direct pressure coming through the opening29 of the ring 28, which pressure will cause the ball to be forcedagainst the seat 6 as indicated by dotted lines. It will be seen thatthe fluid has a clear passage through the transverse opening 8 into theoutlet opening 7. If at any time it is desired to reduce the pressure inthe inlet pipe 4, this may be done by forcing the stem 24: inwardly,thus, allowing the gas to pass out through the openings 22 and 23.

Having thus described our invention, what is claimed is An automatic outoff comprising a body provided with longitudinally extending inlet andoutlet openings, and a transverse opening connecting said inlet and"outlet openings, said inlet opening being reduced at its inner end toprovide a valve seat, the bottom of said inlet opening sloping down wardfrom said valve seat, a ball normally seated in said transverse opening,and means for forcing said ball into said inlet opening.

In testimony whereof we hereunto afiix our signatures in presence of twowitnesses.

HARRY F. STORER. WILBURN WHITLEY JAMIESON, JR.

\Vitnesses:

J. A. SUMNER, C. A. LAWTON.

Copies oi this patent may be obtained for five cents each, by addressingthe Commissioner of Patents. Washington, D. 0.

